不同的粘合剂应用方法对过度蚀刻牙中的粘合强度的影响
Phoebe Burrer1, Shpresa Simoni2, Paula Zwicky2
1Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland, phoebe.burrer@zzm.uzh.ch.
American journal of dentistry
|June 26, 2023
概括
修改粘合剂应用技术,如活性,双重,预热或超声波方法,不会在过度蚀刻后改善牙粘合强度. 在所有测试组中都出现了主要的粘合器故障.
科学领域:
- 牙科材料科学 牙科材料科学
- 粘合式牙科 粘合式牙科
- 生物材料是一种生物材料.
背景情况:
- 过度蚀刻牙可以损害混合层的完整性.
- 标准的粘合剂应用方案可能不足以克服过度蚀刻牙所带来的挑战.
研究的目的:
- 为了评估修改的粘合剂应用技术对牙结合强度的有效性.
- 为了研究活性,双重,预热或超声波应用方法是否会增强对过度蚀刻牙的粘合.
主要方法:
- 人类第三牙样本被过度蚀刻并分配到各种粘合剂应用 (活性,双重,预热,超声波) 的组.
- 在复合材料恢复后评估了微拉力键强度和故障模式.
- 统计分析包括克鲁斯卡尔-瓦利斯和康诺弗后期试验.
主要成果:
- 修改后的应用技术和对照组之间没有观察到牙结合强度的显著差异.
- 所有组中的大多数故障都是粘合剂故障.
结论:
- 改变粘合剂的应用方法并不能提高对过度蚀刻牙的粘合强度.
- 目前的修改在补偿牙粘合中的过度蚀刻错误方面无效.
相关概念视频
Bonding and Strength of Aggregate
223
The bond between aggregate particles and the cement matrix is significantly influenced by the shape and surface texture of the aggregates. High-strength concretes benefit from a rougher texture, which leads to stronger bonding due to greater adhesion. Angular aggregates with larger surface areas also enhance this bond. The bonding quality, however, is complex to assess as no universally accepted test exists. Good bonding is indicated when a crushed concrete specimen shows some aggregate...
223
Adhesion
40.1K
Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules.
Capillary action is a result of water’s adhesive tendencies. When a narrow...
Capillary action is a result of water’s adhesive tendencies. When a narrow...
40.1K


